0.325x^2+0.0162x-0.00646=0

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Solution for 0.325x^2+0.0162x-0.00646=0 equation:


Simplifying
0.325x2 + 0.0162x + -0.00646 = 0

Reorder the terms:
-0.00646 + 0.0162x + 0.325x2 = 0

Solving
-0.00646 + 0.0162x + 0.325x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
0.325 the coefficient of the squared term: 

Divide each side by '0.325'.
-0.01987692308 + 0.04984615385x + x2 = 0

Move the constant term to the right:

Add '0.01987692308' to each side of the equation.
-0.01987692308 + 0.04984615385x + 0.01987692308 + x2 = 0 + 0.01987692308

Reorder the terms:
-0.01987692308 + 0.01987692308 + 0.04984615385x + x2 = 0 + 0.01987692308

Combine like terms: -0.01987692308 + 0.01987692308 = 0.00000000000
0.00000000000 + 0.04984615385x + x2 = 0 + 0.01987692308
0.04984615385x + x2 = 0 + 0.01987692308

Combine like terms: 0 + 0.01987692308 = 0.01987692308
0.04984615385x + x2 = 0.01987692308

The x term is 0.04984615385x.  Take half its coefficient (0.02492307693).
Square it (0.0006211597637) and add it to both sides.

Add '0.0006211597637' to each side of the equation.
0.04984615385x + 0.0006211597637 + x2 = 0.01987692308 + 0.0006211597637

Reorder the terms:
0.0006211597637 + 0.04984615385x + x2 = 0.01987692308 + 0.0006211597637

Combine like terms: 0.01987692308 + 0.0006211597637 = 0.0204980828437
0.0006211597637 + 0.04984615385x + x2 = 0.0204980828437

Factor a perfect square on the left side:
(x + 0.02492307693)(x + 0.02492307693) = 0.0204980828437

Calculate the square root of the right side: 0.143171515

Break this problem into two subproblems by setting 
(x + 0.02492307693) equal to 0.143171515 and -0.143171515.

Subproblem 1

x + 0.02492307693 = 0.143171515 Simplifying x + 0.02492307693 = 0.143171515 Reorder the terms: 0.02492307693 + x = 0.143171515 Solving 0.02492307693 + x = 0.143171515 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.02492307693' to each side of the equation. 0.02492307693 + -0.02492307693 + x = 0.143171515 + -0.02492307693 Combine like terms: 0.02492307693 + -0.02492307693 = 0.00000000000 0.00000000000 + x = 0.143171515 + -0.02492307693 x = 0.143171515 + -0.02492307693 Combine like terms: 0.143171515 + -0.02492307693 = 0.11824843807 x = 0.11824843807 Simplifying x = 0.11824843807

Subproblem 2

x + 0.02492307693 = -0.143171515 Simplifying x + 0.02492307693 = -0.143171515 Reorder the terms: 0.02492307693 + x = -0.143171515 Solving 0.02492307693 + x = -0.143171515 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.02492307693' to each side of the equation. 0.02492307693 + -0.02492307693 + x = -0.143171515 + -0.02492307693 Combine like terms: 0.02492307693 + -0.02492307693 = 0.00000000000 0.00000000000 + x = -0.143171515 + -0.02492307693 x = -0.143171515 + -0.02492307693 Combine like terms: -0.143171515 + -0.02492307693 = -0.16809459193 x = -0.16809459193 Simplifying x = -0.16809459193

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.11824843807, -0.16809459193}

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